package com.monika.main.security;

import com.monika.main.security.handler.LogoutSuccessHandlerImpl;
import com.monika.main.security.handler.PrimalAccessDeniedHandler;
import com.monika.main.security.handler.UserLoginFailureHandler;
import com.monika.main.security.handler.UserLoginSuccessHandler;
import com.monika.main.security.voter.PrimalAccessDecisionVoter;
import com.monika.main.system.util.SpringUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpMethod;
import org.springframework.security.access.AccessDecisionManager;
import org.springframework.security.access.AccessDecisionVoter;
import org.springframework.security.access.vote.AffirmativeBased;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.annotation.web.configurers.ExpressionUrlAuthorizationConfigurer;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.web.access.expression.WebExpressionVoter;

import java.util.ArrayList;
import java.util.List;

/**
 * @Author whh
 * @Date: 2023/04/15/ 0:20
 * @description
 */
@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true, securedEnabled = true)
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    /**
     * 自定义用户认证逻辑
     */
    @Autowired
    private UserDetailsService userDetailsService;

    @Autowired
    private UserLoginSuccessHandler userLoginSuccessHandler;

    @Autowired
    private UserLoginFailureHandler userLoginFailureHandler;

    /**
     * 退出处理类
     */
    @Autowired
    private LogoutSuccessHandlerImpl logoutSuccessHandler;

    /**
     * token认证过滤器
     */

    @Autowired
    private PrimalAccessDeniedHandler  primalAccessDeniedHandler;



    /**
     * 允许匿名访问的地址
     */
    @Autowired
    private PermitUrlUtil permitAllUrl;

    /**
     * anyRequest          |   匹配所有请求路径
     * access              |   SpringEl表达式结果为true时可以访问
     * anonymous           |   匿名可以访问
     * denyAll             |   用户不能访问
     * fullyAuthenticated  |   用户完全认证可以访问（非remember-me下自动登录）
     * hasAnyAuthority     |   如果有参数，参数表示权限，则其中任何一个权限可以访问
     * hasAnyRole          |   如果有参数，参数表示角色，则其中任何一个角色可以访问
     * hasAuthority        |   如果有参数，参数表示权限，则其权限可以访问
     * hasIpAddress        |   如果有参数，参数表示IP地址，如果用户IP和参数匹配，则可以访问
     * hasRole             |   如果有参数，参数表示角色，则其角色可以访问
     * permitAll           |   用户可以任意访问
     * rememberMe          |   允许通过remember-me登录的用户访问
     * authenticated       |   用户登录后可访问
     */
    @Override
    protected void configure(HttpSecurity httpSecurity) throws Exception
    {
        // 注解标记允许匿名访问的url
        ExpressionUrlAuthorizationConfigurer<HttpSecurity>.ExpressionInterceptUrlRegistry registry = httpSecurity.authorizeRequests();
        permitAllUrl.getUrls().forEach(url -> registry.antMatchers(url).permitAll());
        httpSecurity
                .formLogin()
                .loginPage("/login")
                .loginProcessingUrl("/login")
                .defaultSuccessUrl("/index")//登录成功后默认的跳转页面路径
                .successHandler(userLoginSuccessHandler)
                .failureHandler(userLoginFailureHandler)
                .and()
                .authorizeRequests()
                .antMatchers("/login","/user/login","/captchaImage").permitAll()
                // 静态资源，可匿名访问
                .antMatchers(HttpMethod.GET, "/", "/*.html", "/**/*.html", "/**/*.css", "/**/*.js", "/profile/**").permitAll()
                .antMatchers("/swagger-ui.html", "/swagger-resources/**", "/webjars/**", "/layui/**","/*/api-docs", "/druid/**","/cxf/**").permitAll()
                .anyRequest().authenticated()
                //动态鉴权
                .accessDecisionManager(SpringUtil.getBean(AccessDecisionManager.class))
                .and()
                .exceptionHandling().accessDeniedHandler(primalAccessDeniedHandler)//权限不足处理器

                .and()
                .logout()
                .logoutUrl("/logout")
                .logoutSuccessHandler(logoutSuccessHandler).permitAll()
                .and()
                //session管理
                .sessionManagement()
                .invalidSessionUrl("/login") //失效后跳转到登陆页面
                .and()
                //禁用跨站csrf攻击防御
                .csrf()
                .disable()

                //果页面里有需要通过iframe/frame引用的页面，需要配置Spring Security允许iframe frame加载同源的资源，方法为在Spring Security的配置类里将header response的X-Frame-Options属性设置为SAMEORIGIN
                .headers().frameOptions().sameOrigin();
    }


    /**
     * 权限管理器
     * @return
     */
    @Bean
    public AccessDecisionManager accessDecisionManager(PrimalAccessDecisionVoter voter){
        List<AccessDecisionVoter<?>> voters = new ArrayList<>();
        voters.add(voter);
        voters.add(new WebExpressionVoter());
        return new AffirmativeBased(voters);
    }

    /**
     * 强散列哈希加密实现
     */
    @Bean
    public BCryptPasswordEncoder bCryptPasswordEncoder()
    {
        return new BCryptPasswordEncoder();
    }

    /**
     * 身份认证接口
     */
    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception
    {
        auth.userDetailsService(userDetailsService).passwordEncoder(bCryptPasswordEncoder());
    }


}
